Apparatus for making sulfur-dioxid gas.



A@ JONES.`

APPARATUS PoR MAKING SULFUR moxm GAS.

APPLICATION FILED SEPT4 25, 1911V 1,097 '77., Patented May 19, 1914.

5 SHEETS-SHEET l.

J. G. JONES. APPARATUS FOR MAKING SULFUR 1310MB GAYS.

APPLICATION FILED SEPT. 25, 1911 HQ Patented May19,1914.

5 SHEBTS-SHEET 2.

J G. JONES.

APPARATUS FUR MAKING SULFUR UIUXID GAS.

APPLIGA'llOl` FILED SEPT 25, 1911.

Pld May 19, 1914. k5 SHEETS-SHEET a.

J. G. JONES. APPARATUS FOR yMAKING SULFUR DIOXD GAS.

APPLIOATIQN FILED SEPT. 25, 19u.

1,097,177, Patented May 19, 1914.

5 SHEETS-SHEET 4 J. G. JONES. APPARATUS PUR MAKING SULFUR DIUXIUGAS. APPIIJIOA-TION tILED SEPT. 25, 1911. 1,097,177,y A Patented May 19, 1914.

5 RUNS-SHEET 5.

WIT/VES IN1/5mm Q /31/ d .d.

UNITED srarns PATENT OFFICE.

somt e. Jones, or CABTHAGE, NEW Yoan.

APPARATUS nos. Maxine SULFUR-Dioxin ses.

\ useful Improvement-s in Apparatus for Making; Sulfur-Dioxid Gas; and 'do hereby7 declare the following' to 'be a full, clear, and exact description oi the invention. such as .will enable others skilled in the artfto which it appertains to make and use the same, refa "A ercnce being' had to the accompanying draw-v the invention being to burn the erudcores as well as, the concentrates.

More specifically the present invention conf 4templates an' apparatus whereby a compart- 'ment rotary kiln "is utilized- 'and through which the ore is slowly fed from the burning Zone, to the exit end of the kiln, a suitable passageway being provided 'through which the vaporized sulfur or any other heat producing material is conducted to the burning' zone, wherein. the sultur,.contained in the ore, aft-er being' ignited, will burn of itself, and sulfur dioxid gasjproduced.

Anot-herleature ot 'the invention resides.

will be hereinafter described in detail and specifically defined in the appended claim.

The invention is illustrated in the accompanying drawings, which, with the` letters of reference marked thereon, torni a part .of this application, and in which,

Figurel is, a side elevationof my iinproved apparatus. v Fig. 2 is a central longitudinal sectional View through the kiln. Fig. 3 is a cross sectional View through the kiln, taken on line 3, 3 of. Fig. 1. Fig. 4Y is a cross-sectional View taken 'on line 4,711 ot Fig. 1 Fig. 5 is'a cross-sectional View taken on line 5, 5 of Fig. 1. Fig. A6, is a cross sec- Specication of Letters Patent. Application filed September Patenten may is, isis. 25, 19111. serial no. 651,256.

tional View through a kiln showing, a slight modification in which six radial portions are illustra-ted. Fig. 7 is an end Viewoi" the kiln, showiixg the peep holes. `Figl 8 a. cross-sectional View taken on liheiS, olf' Fig. 1. 'Fig 9 is an enlarged detail see-- tionalview taken on line 8, 8 of Fig. 1. Figi; l0 is a detail sectional view taken on line a gate to 'one of the discharge hoppers'. shown in Figs. 9 and 10. Fig. 12 is vertici?. sectional View through the ore hopper. F 13 is atop plan view of the ore ionps drier and a portion of the kiln with Api connection with the ore hopper. Fig. is .a vertical sectional view'on line 14, ot Fig. 13. Fig. 15 is a vertical sections1A View on line 15., 15 of Fig. 13. 16 a lvertical sectinal View on line 16; 16 n- Fig. 12. f v

Letter A designates arotary kiln mount upon anti-friction rollers, vand a si" inclination, 'and is adaptedto be rot. slowly in any suitable manner. A sulin burner B is positioned adjacent to the e end .of the kiln, and'comprises a` concr.,.., oven in which commercial-sulfur is vapnrM ized for the initial heat in starting the b WL ing of the sulfur of the ore. f1-Sui feeding hopper B is provided intow the sulfur is placed and from whence. fed into the furnace. A pipe C corn cates betweenthe furnace or oven' ai discharge hood C of the kiln, and which latter the.A iron einders fall in nia 'kf exit from the kiln. Y

It will oe noted upon examination of the tions, radiall)7 arranged' between a central tubular duct C2 and the -inner` circumference ot the kiln, said partitions'being 'designated by letter C3. Said partitions and the tubut'orining a part of the burning zone of the kiln. A second series of radialpartitions. is provided,intermediate said chamber D, and the inlet. end of the kiln, and designated by letter D, shown clearly in Fig. 4 ot the drawings. .fldjacent to the inlet end of the kiln, and'npon the inner surface thereof.

which provided for the purpose ot feed# ingY the oreforward int-o the kiln as the latter enters the inlet end of the kiln,` through the pipe F.

sectional Views through the kiln, that the latter is provided with a plurality of partim lar duct terminate in a small chamber D 10, 10 on Fig. 9. Fig. 11 is a. face View or is formed a feeding' 'screw or worin F. and

i wall thereof.

" holes C* tluirein.` and lt. will he noted upon reference to Fig. 2 ol the drawings that the centralii'uhe or pire O2 has its inn-rr end opening' into a e formino' a hurning` zone and which space is Vpositiontal preferably at Sonie dhci tonne .Vroni the exit end of the kiln. It 1S essential in the suoeeseful operation of niy apiiiaratus for hurninn; iron unitesI that the vapore l'ioni the burning .Qul'tur he introthioed at a hieh degree oi' temperature at the hurning zone rather 'han allowing the saine to he ii'itrodueed ator near the exit end oit the kiln and it ie Ytin'ther essential that the ore he heated before entering` the Combustion eliainloer, especially' when treat ing' t lean l ores for the treatment. o't whit-h my a'iiuiratue` is eepetia'lly adapted and in which it in essential to utilize the heat 'from eonnnereial Sulfur in order to Start the burning' of the ores in the eoinluistion zone. lilith thie entl in View the temperature ot the ore ,should he rained as nearly possihle to the oxitilation point. on Vthe entering` ot' the kiln. To siiffeesati1`ll-v huru ore havpor nent. sulfur, l have 'found from enperienre that hy vthe use et a kiln eight ieet in diameter and seventy feet, long, the kiln should make a Complete rotation in about twelve minutes, the kiln holding' at one time Solistantially il'ty itons oli pyrites.

VIn the operation ot my kiln, it ie essential to keep an excess ot air trom 'the pyrites during the oxidation of the sulfur in the ooinhustion and tor `thisI purpose the hopper is kept closed during Athe feeding' of the ore in thoeylinder.

Upon -ret'erenee to .ll'gt tl oi the clrawinge, will he seen a sectional view 'through a. kiln, in which siii partitiona are provided iuetoad oli' hun', which may he found expedion; it desired.

lill. the ezt'; ei'u'l olf the kiln is positionof'l 'the discharge hood which provides; an annu lar ehainher having a elosed end with peep at points diainetrirally oppositie each other in the rireuniiereut-ial wall o1n the discharge hood. are the hoppers Uf', each haring a bracket arm projecting' therefrom and to which ia hinged a door C, which, as the kiln revolves. will automatically open and allow the iron (finders to he dumped. t

lloeitioned adjacent 4to the inletend ollv the kiln, a stack G- having' a eireuinterential opening therein with which the pipe ll" oonu'nunioates, and through whifh the sulfur dioxid vpascua from the kiln to the inte 'ior olf the stank. The lat-ter provided th a hopper ti" naar the top of the steek the lower end of which hopper, eo1n- :n'n'uiioates with an inelined pipe Secured to the inner Sortant-)of the stael and ahout the ina 'nal edge of an opening' in the Another inclined pipe G is fastened to the outer surface oit the stack,

kiln, and through which chute the ore entera`v the kiln. Said hopper G has an opening l-I formed in its inclined wall and a gas exit pipe H is fitted to the marginal edge ot said opening' H, and passes through the top of the stack and communicates with an elbow H2, which :in turn communicates with a pipe H about which a rotatable ore dry ing cylinder I is mounted. Projecting Afrom the inner surface of the cylinder I, are the longitudinally disposed angled wings, provided for the purpose of lifting andyallowing' the ore to drop as the cylinder iS rotated. An ore chute J, passes through the pipe 'H3 diagonally, and through which the ore is introduced into. the interior of the cylinder I to be partially dried before it: enters the hopper within the Stark. The cylinder I may he rotated in any suitable manner not shown, and the ore fed automatically or otherwise into the chute J.

In fuieration a. .aulieient quantity of eornniereial sulfur or other heat producing` ina,- torial is hurned within the sulfur -furnace ll,

the raporized Sulfur or other heat producnieinatorml heine` conveyed through the gas ilue or pipe (l into the duct C to the rhaniher D, where it takes fire and heatsI up the partitions within the kiln to an incandesrent point. As the partitions D are heated to the proper temperature, the kiln is ready to reroive ore from the hopper G. The pyritee ore t'ruahed preferably to about -iinrh sit/.e and down. is ted through the rhnte J into tho interior ol the cylinder l where it is lighted hy the angled wings fastened to the inner surlaee thereof, and allowed to `tall upon the Surlare ot' the pipe il, ,fla the pipo lli heated to a high te1ntwrature, hy reason of the Sulfur dioxid gas 'trom the kiln. heine' eondiuftetl through it, and the oro heine' thoroughly agitated by .the angled wings Vwill hooouie rapidly dried.

Ae the eylinder K and the gas pipe panning' thorothrtuxeli. are at inrliimtions, the oro will he t'ed `forward, and will tall into the hopper G" 'troni whence it will he fed hy gravity and hy means of the worin feed, into the inlet end of the kiln.

. the ore passes through the cylinder l', the moisture given oil niay he drawnoll hy any suitable stack or fan. It han heen denionetrated by actual tests, that: the romoral ofthe moisture from the ore is essentialuin `order to prevent the formation of sulfuric acid. :After the ore hanI heen di@`- charged into the hopper G. it again re noires the heat; of the gas-es Ytronrtluz ltiln as the heat of the raaos surround the hop i i i t in which is mounted a'spiral' mem?? p per G', and the gas ,outlet pipe H. The highly heated ore is :then fed into the kiln by means of the worin G5, and is fed forward hy the threads F into the partitions D. As the said partitions have heen heated to an incandescent state, as previously stated, before the ore is admitted'the ore will hegzinimmediately to burn, and sulfur dioxid gas will be formed. It the ore be of sufiieient rirhness to burn of its` own medium, that is if it-'contains enough sulfur to cause it to' maintain a temperature suiiieient to hurn out all of the sulfur eontained and thoroughly oxidize the iron, then the eomniereial sulfur, which has been vapor-ized in thehurnel" or furnace, may be discontinued, and the'ore travels through the several compartments ot the kiln, beingl discharged into the hood and hoppers Conner-ted thereto.

By the provision of the eolnpartn'ients, formed by the partitions a large bodyot ore may be carried in the kiln, and it has been demonstrated by actual test, that the dividin eI up of the large body of ore by the partitions as shown` is essential to the suecessful working of the apparatus, and it atlordsv a much larger capacity than otherwise would he the ease.

The gas formed by the oxidation 'of pythe same int a series of compartments a second series ot radial partitions formed within the kiln adjacent to its inlet end and spaeedapart from theinner end of the tubular passageway and radial partitions and tori'ning' a combustion chamber, said passageway forming;` means whereby gaseous fuel may be introduced for the preliminary heating;f of the kiln, as set tort-h.

In testimony whereof hereunto affix my signature inthe presence of two'witnesses.

JOHN G. JONES.

`Witnesses AUG V. Parri-nvr, H. ARTHUR CoNsr-.ia'rmn 

